Smart card interface



FIG. 1 is a front perspective view of a smart card interface showing our new design;

FIG. 2 is a front elevation view thereof; and,

FIG. 3 is an enlarged view of the contacts portion of the smart card interface.

The portions depicted in broken line illustrate parts of the smart card interface that form no part of the claimed design. 

CLAIM The ornamental design for a smart card interface, as shown and described. 